Huitzuco (Smn) Weather Records (MXN00012046)

Record envelope, standing records and threshold days for Huitzuco (Smn) (MXN00012046), Mexico, with 71 years of record.

Key Facts for Huitzuco (Smn)

Huitzuco (Smn) (MXN00012046) is a weather station in Mexico at 18.30 latitude and -99.33 longitude, 940 m (3,083 ft) above sea level.
The station reports from 1942 to 2012, 71 years of record.
1,464 records set at Huitzuco (Smn) still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Huitzuco (Smn) set a daily record precipitation of 5.8 mm (0.23 in) on 13 February 2012.

About the Station

Location: Mexico, 18.30 latitude, -99.33 longitude.
Elevation: 940 m (3,083 ft).
Period of record: 1942 to 2012, 71 years.
Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Huitzuco (Smn). The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Huitzuco (Smn), with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	35.6 C (96.1 F)	3.9 C (39.0 F)	n/a	n/a
Feb	40.0 C (104.0 F)	2.8 C (37.0 F)	n/a	n/a
Mar	42.8 C (109.0 F)	7.8 C (46.0 F)	n/a	n/a
Apr	43.9 C (111.0 F)	8.3 C (46.9 F)	n/a	n/a
May	43.9 C (111.0 F)	10.0 C (50.0 F)	n/a	n/a
Jun	42.8 C (109.0 F)	10.6 C (51.1 F)	n/a	n/a
Jul	38.9 C (102.0 F)	11.7 C (53.1 F)	n/a	n/a
Aug	40.0 C (104.0 F)	12.2 C (54.0 F)	n/a	n/a
Sep	38.9 C (102.0 F)	9.4 C (48.9 F)	n/a	n/a
Oct	37.8 C (100.0 F)	8.3 C (46.9 F)	n/a	n/a
Nov	41.1 C (106.0 F)	5.6 C (42.1 F)	n/a	n/a
Dec	37.8 C (100.0 F)	5.0 C (41.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Huitzuco (Smn) still stand. 2004 holds the most, with 161.

Standing records at Huitzuco (Smn) by the year they were set
Year set	Standing records
1985	14
1987	68
1988	68
1989	36
1990	37
1991	88
1992	53
1993	93
1994	19
1995	26
1996	15
1997	71
1998	76
1999	43
2000	14
2001	84
2002	58
2003	67
2004	161
2005	112
2006	6
2007	15
2008	25
2009	19
2010	146
2011	41
2012	9

All-Time Record Progression

1 new records

1 all-time records were set at Huitzuco (Smn) between 6 October 1999 and 6 October 1999. Each dot is a new record.

Wettest Day of Each Month

Oct: 150.1 mm (5.9 in)

The wettest day on record for each calendar month at Huitzuco (Smn). The most was 150.1 mm (5.9 in) on 6 October 1999.

Record daily precipitation for each month at Huitzuco (Smn)
Month	Record daily precipitation (mm)	Date
Jan	45.0 mm (1.8 in)	25 January 1980
Feb	39.9 mm (1.6 in)	3 February 2010
Mar	25.9 mm (1.0 in)	2 March 2001
Apr	55.9 mm (2.2 in)	9 April 1997
May	53.3 mm (2.1 in)	14 May 1990
Jun	99.8 mm (3.9 in)	19 June 1974
Jul	95.8 mm (3.8 in)	27 July 1979
Aug	85.9 mm (3.4 in)	9 August 1999
Sep	75.9 mm (3.0 in)	6 September 1943
Oct	150.1 mm (5.9 in)	6 October 1999
Nov	45.5 mm (1.8 in)	27 November 1985
Dec	25.4 mm (1.0 in)	30 December 1995

Period of Record Coverage

1985 to 2012

27 years of record at Huitzuco (Smn), 1985 to 2012. 10 years have data for under 90 percent of days and are left out of rankings: 1985, 1987, 1988, 1989, 1994, 1995, 1999, 2000 and others.

Days with data per year at Huitzuco (Smn)
Year	Days with data	Share of year	Complete
1985	31	8%	No
1987	212	58%	No
1988	242	66%	No
1989	245	67%	No
1990	365	100%	Yes
1991	365	100%	Yes
1992	366	100%	Yes
1993	365	100%	Yes
1994	59	16%	No
1995	309	85%	No
1996	366	100%	Yes
1997	330	90%	Yes
1998	344	94%	Yes
1999	281	77%	No
2000	6	2%	No
2001	294	81%	No
2002	330	90%	Yes
2003	364	100%	Yes
2004	364	99%	Yes
2005	365	100%	Yes
2006	365	100%	Yes
2007	365	100%	Yes
2008	366	100%	Yes
2009	363	99%	Yes
2010	365	100%	Yes
2011	334	92%	Yes
2012	90	25%	No

Latest Records

Latest records at Huitzuco (Smn)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
13 February 2012	Huitzuco (Smn), MX	daily rain	5.8 mm (0.23 in)	5.8 mm (0.23 in)	68 years	20 of 100 (Routine)
27 January 2012	Huitzuco (Smn), MX	daily rain	1.8 mm (0.07 in)	1.8 mm (0.07 in)	68 years	20 of 100 (Routine)
10 October 2011	Huitzuco (Smn), MX	daily rain	48.3 mm (1.9 in)	23.4 mm (0.9 in)	21 years	29 of 100 (Routine)
30 June 2011	Huitzuco (Smn), MX	daily rain	49.8 mm (2.0 in)	13.0 mm (0.5 in)	60 years	34 of 100 (Routine)
15 April 2011	Huitzuco (Smn), MX	daily rain	45.0 mm (1.8 in)	43.2 mm (1.7 in)	52 years	62 of 100 (Major)
29 June 2010	Huitzuco (Smn), MX	daily rain	58.4 mm (2.3 in)	15.5 mm (0.6 in)	45 years	30 of 100 (Routine)
13 June 2010	Huitzuco (Smn), MX	daily rain	34.3 mm (1.4 in)	1.0 mm (0.04 in)	51 years	21 of 100 (Routine)
4 February 2010	Huitzuco (Smn), MX	daily rain	23.9 mm (0.9 in)	19.6 mm (0.8 in)	54 years	20 of 100 (Routine)
3 February 2010	Huitzuco (Smn), MX	monthly rain	39.9 mm (1.6 in)	19.6 mm (0.8 in)	32 years	44 of 100 (Notable)
15 January 2010	Huitzuco (Smn), MX	daily rain	4.3 mm (0.17 in)	4.3 mm (0.17 in)	67 years	20 of 100 (Routine)
4 August 2009	Huitzuco (Smn), MX	daily rain	56.9 mm (2.2 in)	10.4 mm (0.4 in)	20 years	19 of 100 (Routine)
7 October 2008	Huitzuco (Smn), MX	daily rain	72.9 mm (2.9 in)	7.1 mm (0.28 in)	36 years	21 of 100 (Routine)
8 July 2008	Huitzuco (Smn), MX	daily rain (Tie)	59.9 mm (2.4 in)	tie	59 years	5 of 100 (Routine)
28 April 2008	Huitzuco (Smn), MX	daily rain	7.4 mm (0.29 in)	2.1 mm (0.08 in)	16 years	12 of 100 (Routine)
22 October 2007	Huitzuco (Smn), MX	daily rain	30.0 mm (1.2 in)	9.2 mm (0.36 in)	38 years	23 of 100 (Routine)
30 July 2007	Huitzuco (Smn), MX	daily rain	39.9 mm (1.6 in)	2.6 mm (0.10 in)	38 years	18 of 100 (Routine)
5 June 2007	Huitzuco (Smn), MX	daily rain	34.8 mm (1.4 in)	15.0 mm (0.6 in)	56 years	32 of 100 (Routine)
12 May 2007	Huitzuco (Smn), MX	daily rain	25.9 mm (1.0 in)	6.1 mm (0.24 in)	56 years	29 of 100 (Routine)
29 April 2007	Huitzuco (Smn), MX	daily rain	14.0 mm (0.6 in)	2.1 mm (0.08 in)	50 years	20 of 100 (Routine)
15 November 2006	Huitzuco (Smn), MX	daily rain	43.4 mm (1.7 in)	23.6 mm (0.9 in)	7 years	32 of 100 (Routine)

Climate Trend

11 complete years, 1990 to 2010

One stripe for each of 11 complete years at Huitzuco (Smn), 1990 to 2010. Blue stripes are years cooler than the station's own mean of 24.5 C (76.2 F); red stripes are warmer. The coolest year was 2010, at 22.3 C (72.1 F), and the warmest was 2005, at 26.6 C (79.8 F). The strongest colour marks a difference of 2.3 C (4.1 F).

Annual mean temperature at Huitzuco (Smn) as warming stripes, 1990 to 2010
Year	Annual mean temperature	Difference from the station mean
1990	25.7 C	+1.20 C
1991	25.9 C	+1.33 C
1992	25.3 C	+0.75 C
1993	24.2 C	-0.39 C
1996	25.1 C	+0.53 C
2005	26.6 C	+2.03 C
2006	24.7 C	+0.17 C
2007	23.8 C	-0.72 C
2008	23.3 C	-1.24 C
2009	23.2 C	-1.39 C
2010	22.3 C	-2.28 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1942 to 2012

Yearly extremes at Huitzuco (Smn): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	43.9 C (111.0 F)	1988	39.4 C (102.9 F)	27
Coldest night (TNn)	2.8 C (37.0 F)	1998	7.8 C (46.0 F)	27
Wettest day (Rx1day)	150.1 mm (5.9 in)	1999	60.5 mm (2.4 in)	68
Wettest five days (Rx5day)	265.4 mm (10.4 in)	1974	121.2 mm (4.8 in)	68
Longest dry spell (CDD)	146 days	1998	78 days	68

Hottest day (TXx)

The hottest day of the year at Huitzuco (Smn), 1942 to 2012. The record is 43.9 C (111.0 F) in 1988, marked on the chart; the median year is 39.4 C (102.9 F).

Hottest day (TXx) at Huitzuco (Smn) by year
Year	Hottest day (TXx)
1942	n/a
1943	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	36.7 C (98.1 F)
1986	n/a
1987	37.8 C (100.0 F)
1988	43.9 C (111.0 F)
1989	42.8 C (109.0 F)
1990	42.8 C (109.0 F)
1991	43.9 C (111.0 F)
1992	42.8 C (109.0 F)
1993	42.8 C (109.0 F)
1994	31.7 C (89.1 F)
1995	40.6 C (105.1 F)
1996	41.1 C (106.0 F)
1997	41.7 C (107.1 F)
1998	41.1 C (106.0 F)
1999	40.0 C (104.0 F)
2000	37.8 C (100.0 F)
2001	36.7 C (98.1 F)
2002	40.0 C (104.0 F)
2003	37.8 C (100.0 F)
2004	37.8 C (100.0 F)
2005	38.3 C (100.9 F)
2006	37.8 C (100.0 F)
2007	38.3 C (100.9 F)
2008	36.7 C (98.1 F)
2009	37.2 C (99.0 F)
2010	39.4 C (102.9 F)
2011	39.4 C (102.9 F)
2012	37.8 C (100.0 F)

Coldest night (TNn)

The coldest night of the year at Huitzuco (Smn), 1942 to 2012. The record is 2.8 C (37.0 F) in 1998, marked on the chart; the median year is 7.8 C (46.0 F).

Coldest night (TNn) at Huitzuco (Smn) by year
Year	Coldest night (TNn)
1942	n/a
1943	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	15.6 C (60.1 F)
1986	n/a
1987	10.0 C (50.0 F)
1988	7.8 C (46.0 F)
1989	5.6 C (42.1 F)
1990	10.0 C (50.0 F)
1991	8.9 C (48.0 F)
1992	7.8 C (46.0 F)
1993	5.6 C (42.1 F)
1994	3.9 C (39.0 F)
1995	8.9 C (48.0 F)
1996	6.7 C (44.1 F)
1997	6.1 C (43.0 F)
1998	2.8 C (37.0 F)
1999	7.2 C (45.0 F)
2000	6.1 C (43.0 F)
2001	6.1 C (43.0 F)
2002	5.0 C (41.0 F)
2003	12.8 C (55.0 F)
2004	12.8 C (55.0 F)
2005	7.8 C (46.0 F)
2006	5.0 C (41.0 F)
2007	8.3 C (46.9 F)
2008	6.7 C (44.1 F)
2009	7.8 C (46.0 F)
2010	5.6 C (42.1 F)
2011	8.9 C (48.0 F)
2012	10.0 C (50.0 F)

Wettest day (Rx1day)

The wettest day of the year at Huitzuco (Smn), 1942 to 2012. The record is 150.1 mm (5.9 in) in 1999, marked on the chart; the median year is 60.5 mm (2.4 in).

Wettest day (Rx1day) at Huitzuco (Smn) by year
Year	Wettest day (Rx1day)
1942	0.0 mm (0.00 in)
1943	75.9 mm (3.0 in)
1945	77.0 mm (3.0 in)
1946	74.9 mm (2.9 in)
1947	61.0 mm (2.4 in)
1948	74.9 mm (2.9 in)
1949	63.5 mm (2.5 in)
1950	81.3 mm (3.2 in)
1951	53.3 mm (2.1 in)
1952	62.5 mm (2.5 in)
1953	79.8 mm (3.1 in)
1954	73.9 mm (2.9 in)
1955	58.9 mm (2.3 in)
1956	56.9 mm (2.2 in)
1957	69.9 mm (2.8 in)
1958	89.9 mm (3.5 in)
1959	70.9 mm (2.8 in)
1960	73.9 mm (2.9 in)
1963	56.4 mm (2.2 in)
1964	60.5 mm (2.4 in)
1965	68.3 mm (2.7 in)
1966	84.8 mm (3.3 in)
1967	48.3 mm (1.9 in)
1968	58.9 mm (2.3 in)
1969	61.0 mm (2.4 in)
1970	42.9 mm (1.7 in)
1971	61.0 mm (2.4 in)
1972	70.9 mm (2.8 in)
1973	68.3 mm (2.7 in)
1974	99.8 mm (3.9 in)
1975	48.8 mm (1.9 in)
1976	38.4 mm (1.5 in)
1977	47.0 mm (1.9 in)
1978	56.9 mm (2.2 in)
1979	95.8 mm (3.8 in)
1980	72.9 mm (2.9 in)
1981	71.9 mm (2.8 in)
1982	67.8 mm (2.7 in)
1983	40.4 mm (1.6 in)
1984	60.5 mm (2.4 in)
1985	65.8 mm (2.6 in)
1986	66.3 mm (2.6 in)
1987	57.4 mm (2.3 in)
1988	44.5 mm (1.8 in)
1989	79.8 mm (3.1 in)
1990	59.9 mm (2.4 in)
1991	53.8 mm (2.1 in)
1992	59.7 mm (2.4 in)
1993	53.3 mm (2.1 in)
1994	0.0 mm (0.00 in)
1995	47.8 mm (1.9 in)
1996	73.9 mm (2.9 in)
1997	55.9 mm (2.2 in)
1998	79.2 mm (3.1 in)
1999	150.1 mm (5.9 in)
2000	52.3 mm (2.1 in)
2001	58.9 mm (2.3 in)
2002	51.3 mm (2.0 in)
2003	47.5 mm (1.9 in)
2004	71.9 mm (2.8 in)
2005	56.4 mm (2.2 in)
2006	54.9 mm (2.2 in)
2007	51.3 mm (2.0 in)
2008	72.9 mm (2.9 in)
2009	56.9 mm (2.2 in)
2010	58.4 mm (2.3 in)
2011	52.8 mm (2.1 in)
2012	5.8 mm (0.23 in)

Wettest five days (Rx5day)

The wettest five days of the year at Huitzuco (Smn), 1942 to 2012. The record is 265.4 mm (10.4 in) in 1974, marked on the chart; the median year is 121.2 mm (4.8 in).

Wettest five days (Rx5day) at Huitzuco (Smn) by year
Year	Wettest five days (Rx5day)
1942	0.0 mm (0.00 in)
1943	139.3 mm (5.5 in)
1945	132.4 mm (5.2 in)
1946	146.5 mm (5.8 in)
1947	139.0 mm (5.5 in)
1948	139.3 mm (5.5 in)
1949	122.9 mm (4.8 in)
1950	111.8 mm (4.4 in)
1951	88.9 mm (3.5 in)
1952	123.4 mm (4.9 in)
1953	126.3 mm (5.0 in)
1954	117.3 mm (4.6 in)
1955	109.1 mm (4.3 in)
1956	122.8 mm (4.8 in)
1957	150.9 mm (5.9 in)
1958	142.3 mm (5.6 in)
1959	140.5 mm (5.5 in)
1960	119.6 mm (4.7 in)
1963	210.1 mm (8.3 in)
1964	101.9 mm (4.0 in)
1965	153.2 mm (6.0 in)
1966	151.9 mm (6.0 in)
1967	115.6 mm (4.6 in)
1968	108.7 mm (4.3 in)
1969	143.1 mm (5.6 in)
1970	123.9 mm (4.9 in)
1971	78.3 mm (3.1 in)
1972	107.3 mm (4.2 in)
1973	146.3 mm (5.8 in)
1974	265.4 mm (10.4 in)
1975	115.2 mm (4.5 in)
1976	74.2 mm (2.9 in)
1977	131.0 mm (5.2 in)
1978	147.5 mm (5.8 in)
1979	150.4 mm (5.9 in)
1980	140.4 mm (5.5 in)
1981	217.2 mm (8.6 in)
1982	90.2 mm (3.6 in)
1983	70.2 mm (2.8 in)
1984	100.4 mm (4.0 in)
1985	175.1 mm (6.9 in)
1986	100.9 mm (4.0 in)
1987	107.5 mm (4.2 in)
1988	105.4 mm (4.1 in)
1989	137.5 mm (5.4 in)
1990	113.6 mm (4.5 in)
1991	123.9 mm (4.9 in)
1992	115.4 mm (4.5 in)
1993	88.9 mm (3.5 in)
1994	0.0 mm (0.00 in)
1995	160.9 mm (6.3 in)
1996	108.0 mm (4.3 in)
1997	129.2 mm (5.1 in)
1998	150.0 mm (5.9 in)
1999	182.0 mm (7.2 in)
2000	106.7 mm (4.2 in)
2001	126.5 mm (5.0 in)
2002	131.9 mm (5.2 in)
2003	89.2 mm (3.5 in)
2004	119.4 mm (4.7 in)
2005	115.8 mm (4.6 in)
2006	104.4 mm (4.1 in)
2007	84.5 mm (3.3 in)
2008	144.8 mm (5.7 in)
2009	116.7 mm (4.6 in)
2010	112.0 mm (4.4 in)
2011	115.8 mm (4.6 in)
2012	5.8 mm (0.23 in)

Longest dry spell (CDD)

The longest dry spell of the year at Huitzuco (Smn), 1942 to 2012. The record is 146 days in 1998, marked on the chart; the median year is 78 days.

Longest dry spell (CDD) at Huitzuco (Smn) by year
Year	Longest dry spell (CDD)
1942	61 days
1943	81 days
1945	124 days
1946	54 days
1947	65 days
1948	65 days
1949	115 days
1950	106 days
1951	77 days
1952	100 days
1953	143 days
1954	64 days
1955	93 days
1956	75 days
1957	98 days
1958	78 days
1959	101 days
1960	120 days
1963	64 days
1964	97 days
1965	76 days
1966	67 days
1967	125 days
1968	52 days
1969	63 days
1970	120 days
1971	70 days
1972	108 days
1973	93 days
1974	118 days
1975	107 days
1976	57 days
1977	57 days
1978	64 days
1979	92 days
1980	58 days
1981	48 days
1982	73 days
1983	72 days
1984	114 days
1985	68 days
1986	112 days
1987	109 days
1988	60 days
1989	23 days
1990	52 days
1991	125 days
1992	58 days
1993	94 days
1994	59 days
1995	52 days
1996	67 days
1997	75 days
1998	146 days
1999	106 days
2000	139 days
2001	64 days
2002	71 days
2003	88 days
2004	64 days
2005	81 days
2006	111 days
2007	69 days
2008	118 days
2009	130 days
2010	110 days
2011	100 days
2012	26 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Rainfall Return Levels

56 years, 1943 to 2011

A day with at least 62.8 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 120.7 mm (4.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Huitzuco (Smn): the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	62.8 mm (2.5 in)
5 years	76.6 mm (3.0 in)
10 years	86.4 mm (3.4 in)
25 years	99.5 mm (3.9 in)
50 years	109.9 mm (4.3 in)
100 years	120.7 mm (4.8 in)	Longer than the 56 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 56 years of values from 1943 to 2011.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 150.1 mm (5.9 in) in 1999; 99.8 mm (3.9 in) in 1974; 95.8 mm (3.8 in) in 1979.

Download the Data

Data for Huitzuco (Smn) standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Huitzuco (Smn) threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).